Home / 1,645,356.08-2,270,758.92-1,000,820.72

Finding the Fourth Proportional to 1,645,356.08, 2,270,758.92 and 1,000,820.72

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Solution

The fourth proportional to 1,645,356.08, 2,270,758.92 and 1,000,820.72 is: 1,381,234.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,356.08 : 2,270,758.92 = 1,000,820.72 : x
  2. Step 2: Convert to fraction form
    1,645,356.08/2,270,758.92 = 1,000,820.72/x
  3. Step 3: Cross multiply
    1,645,356.08x = 2,270,758.92 × 1,000,820.72
  4. Step 4: Simplify right side
    1,645,356.08x = 2,272,622,577,260.82
  5. Step 5: Solve for x
    x = 2,272,622,577,260.82/1,645,356.08
  6. Step 6: Final answer
    x = 1,381,234.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.